Fig. 3From: The effects of greenness exposure on hypertension incidence among Chinese oldest-old: a prospective cohort studyAssociation of NDVI and hypertension incidence risk in Cox models with penalized splines (0.30: reference). Adjusted for age, living arrangement, PM2.5 concentration, regions, residence, gender, smoking, drinking, exercising, pension, marital status, education attainment, self-reported diabetes, personal outdoor activities, gardening, and BMIBack to article page